R5 lunar photography with stacked EF extenders

Started Dec 14, 2021 | Discussions thread
OP Bigger Contributing Member • Posts: 664
Re: How did you stack the EF 2x III and EF 1.4x III

J.K.T. wrote:

Bigger wrote:

Yes, with the control ring. All 8 pins seem to have independent springs, and the force seems comparable to Canon lenses (but I didn't attempt to measure this). The adjacent pins didn't move.

OK - then it better than mine. As it seems also easier to mod (less material to remove), I'll have to get one of those. Disassembly is likely not an option, though.

Yes, you just need to remove the high ridge at the casting seam on the plastic baffle, and just around the contact pin bump. You can almost force the RF 1.4x rubber "nose" inside the adapter, but don't do it because it may be more difficult to separate them later. I just used an ordinary half-round file and a light touch--just enough to get the nose to fit inside. Then cleaned well with alcohol to remove any filings.

 Bigger's gear list:Bigger's gear list
Canon EOS 5DS R Canon EOS R5 Canon EOS R7
Post (hide subjects) Posted by
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow